Genius, billionaire, and playboy Tony Stark, who has inherited the defense contractor Stark Industries from his father, is in war-torn Afghanistan with his friend and military liaison, Lieutenant Colonel James Rhodes to demonstrate the new "Jericho" missile. The convoy is ambushed and Stark is critically wounded by one of his own rocket propelled grenades. He is captured and imprisoned in a cave by the terrorist group the Ten Rings, and an electromagnet is grafted into his chest by fellow captive Yinsen to keep the shrapnel shell shards that wounded him from reaching his heart and killing him. Ten Rings leader Raza offers Stark freedom in exchange for building a Jericho missile for the group, but Tony and Yinsen agree Raza will not keep his word.
Après leurs premières aventures durant lesquelles ils ont affronté Ronan l'Accusateur, les Gardiens de la Galaxie voyagent de planète en planète et vendent leurs services. Ils vont découvrir la mystérieuse filiation de Star-Lord.
On the planet Krypton, criminals General Zod (Terence Stamp), Ursa (Sarah Douglas) and Non (Jack O'Halloran) are sentenced to eternal banishment inside the Phantom Zone by Jor-El (Marlon Brando) for insurrection and murder, amongst other crimes. Later, the shockwaves resulting from Krypton's explosion change the trajectory of the Phantom Zone, causing it to set on the same course as Kal-El's starship to Earth. Thirty years later, Superman (Christopher Reeve) diverts an XK-101 missile into outer space and, unknowingly, destroys the Phantom Zone as it drifts towards Earth and frees its captives.
Deadpool se voit contraint de rejoindre les X-Men : après une tentative ratée de sauver un jeune mutant au pouvoir destructeur, il se retrouve dans une prison anti-mutants. Arrive Cable, un soldat venant du futur et ayant pour cible le jeune mutant, en quête de vengeance. Deadpool décide de le combattre. Peu convaincu par les règles des X-Men, il crée sa propre équipe, la « X-Force ». Mais cette mission lui réserve de grosses surprises, des ennemis de taille et des alliés indispensables.
The "Minutemen", a team of costumed crime fighters, was formed in 1939 in response to a rise in costumed gangs and criminals; the "Watchmen" was similarly formed decades later. Their existence has dramatically affected world events: in particular, Doctor Manhattan's superpowers help the United States win the Vietnam War, resulting in President Richard Nixon being reelected. Doctor Manhattan gives the West a strategic advantage over the Soviet Union, which by the 1980s threatens to escalate the Cold War into a nuclear war. During that time, growing anti-vigilante sentiment in the country leads to masked crime-fighters being outlawed. While many of the heroes retire, Doctor Manhattan and the Comedian operate as government-sanctioned agents, and Rorschach continues to operate outside the law.
Dave Lizewski (Aaron Johnson) is an ordinary teenager who lives in Staten Island, New York. Dave purchases a bodysuit and makes modifications to it. He then embarks on a campaign to become a real-life superhero, armed with a couple of batons. During his first attempt to fight crime, he becomes the victim of a stabbing and a hit and run. This leaves him with multiple fractures and metal plates, all of which cause him to require extensive rehabilitation. In the process of recovery, he gains a capacity to endure pain and enhanced durability. In his absence from school, a rumor spreads that he is gay, as he was found naked by the paramedics after discarding his costume. As a result, his longtime crush, Katie Deauxma (Lyndsy Fonseca), immediately attempts to become his friend.
On October 30, Devil's Night in Detroit, Sergeant Albrecht is at the scene of a crime where Shelly Webster has been beaten and raped, and her fiancé Eric Draven then died on the street outside, having been stabbed, shot, and thrown out of the window. The couple were to be married the following day, on Halloween. As he leaves for the hospital with Shelly, Albrecht meets a young girl, Sarah, who says that she is their friend, and that they take care of her. Albrecht tells her that Shelly is dying.
Au Népal, un dénommé Kaecilius, maître des arts mystiques, s'introduit avec ses comparses dans la bibliothèque du sanctuaire de Kamar-Taj afin de s’emparer de deux pages du livre de Cagliostro, après avoir tué le bibliothécaire. L’Ancien tente d’arrêter son ex-élève mais échoue, son disciple parvenant à fuir.
The Justice League, with assistance from Cyborg, stop the Royal Flush Gang as they attempt to rob a diamond vault using complex technology that allows them to pass through solid objects. Wonder Woman uses her lasso of truth on the leader to find out who gave them the technology. The leader, despite being under the influence of the lasso, says that he doesn't know who gave them the technology. Martian Manhunter uses his mental powers to scan the minds of each member of the gang, none of them know the origin of the device. Meanwhile, Vandal Savage plots to exterminate the greater part of the human population and start a new civilization, having discreetly given the technology to the Gang in order to test it. To ensure that the Justice League is unable to stop him, Savage hires Mirror Master, who hacks into the Batcomputer and steals contingency plans devised by Batman to incapacitate his League teammates should they ever go rogue. When Mirror Master asks if he wants him to find Batman's true identity, Savage declines stating that he already knows the true identity of Batman. Savage assembles Mirror Master and a group of other supervillains (consisting of Bane, Cheetah, Ma'alefa'ak, Star Sapphire, and Metallo) with personal vendettas against the heroes and pays them to simultaneously attack the members of the League using the stolen plans, albeit altered to be lethal. When the supervillains agree with Savage's plan, he welcomes them to the Legion of Doom.
Peter Parker struggles to balance his crime-fighting duties as Spider-Man with the demands of his normal life. He loses a job, faces financial difficulties, and struggles to attend his physics lectures at Columbia University on time. Estranged from both love interest Mary Jane Watson and best friend Harry Osborn, who intends to seek revenge on Spider-Man for his father Norman's death, Peter additionally discovers his Aunt May is facing foreclosure.
The mayor of Gotham City orders District Attorney Harvey Dent (Billy Dee Williams) and Police Commissioner James Gordon (Pat Hingle) to increase police activity and combat crime in preparation for the city's bicentennial. Reporter Alexander Knox (Robert Wuhl) and photojournalist Vicki Vale (Kim Basinger) begin to investigate reports of a vigilante dubbed "Batman", who is targeting the city's criminals.
Batman rescues Riddler from a black ops assassination ordered by Amanda Waller, returning him to Arkham Asylum. Invoking Priority Ultraviolet, Waller captures criminals Black Spider, Captain Boomerang, Deadshot, Harley Quinn, KGBeast, Killer Frost and King Shark forming the Suicide Squad. Their mission is to break into Arkham Asylum and recover a thumbdrive in the Riddler's cane. While in Waller's employ, Riddler copied information on the squad, and is planning to make it public. She forces them to comply by threatening to detonate nano-bombs implanted in their necks. KGBeast, who believes the bombs are a bluff, walks out on Waller and is killed as an example to the others.
Dévasté par la disparition d'Iron Man, son mentor, Peter Parker a pour projet de laisser son costume de super-héros derrière lui pendant quelques semaines afin de partir en vacances en Europe avec ses camarades lycéens, mais cette escapade est rapidement compromise quand il accepte à contrecœur d'aider Nick Fury à découvrir le mystère de plusieurs attaques de créatures, qui ravagent le continent.
Doomsday, monstre provenant de l'espace, atterrit sur Terre à bord d'une météorite. Écrasant la totalité de la Ligue des Justiciers avec une déconcertante facilité, Superman se voit devenir le seul être capable de venir à bout de la créature. Seul son courage et sa détermination viendront à bout de la créature extraterrestre, y compris le sacrifice si cela s'avère être la seule solution possible.
À la suite de sa participation à l'affrontement entre Iron Man et Captain America, Peter Parker, un jeune lycéen fréquentant le lycée de Midtown, continue à se servir de ses pouvoirs sous le masque de Spider-Man pour lutter contre la criminalité qui ronge la ville de New York, tout en essayant de trouver un équilibre entre sa vie de lycéen, son amour secret pour Liz, son ami Ned Leeds, et sa carrière de super-héros masqué. Mais avec la venue d'un nouveau super-vilain nommé le Vautour équipé d'un exosquelette créé à partir de technologie Chitauri (récupérée après la bataille de New York), Peter devra faire ses preuves en affrontant ce dernier pour prouver à Tony Stark qu'il peut être un atout pour l'équipe des Avengers.